PT - JOURNAL ARTICLE ED - , TI - “Can health status questionnaires be used as a measure of physical activity in COPD patients?” Heleen Demeyer, Ivan Dueñas-Espín, Corina De Jong, Zafeiris Louvaris, Miek Hornikx, Elena Gimeno-Santos, Matthias Loeckx, Ioannis Vogiatzis, Wim Janssens, Nicholas S. Hopkinson, Roberto A. Rabinovich, Niklas Karlsson, Judith Garcia-Aymerich and Thierry Troosters, on behalf of the PROactive consortium. <em>Eur Respir J</em> 2016; 47: 1565–1568. AID - 10.1183/13993003.51815-2015 DP - 2017 Feb 01 TA - European Respiratory Journal PG - 1551815 VI - 49 IP - 2 4099 - http://erj.ersjournals.com/content/49/2/1551815.short 4100 - http://erj.ersjournals.com/content/49/2/1551815.full SO - Eur Respir J2017 Feb 01; 49